Jo’s favourite showbiz story: Mariah Carey - "When I entered the hotel room where I was interviewing Mariah, I was struck by the low-lighting... And there was Mariah, relaxing on a chaise longe, drinking champagne - and that’s where we did the interview! She loved my t-shirt and was desperate for me to give it to her - she even offered to buy it from me! I said no because it’s one of my favourites!"